And perhaps unsurprisingly, Raymond Chandler, the undisputed dean of L.A. noir, wrote the best description ever:

"There was a desert wind blowing that night. It was one of those hot dry Santa Ana's that come down through the mountain passes and curl your hair and make your nerves jump and your skin itch. On nights like that every booze party ends in a fight. Meek little wives feel the edge of the carving knife and study their husbands' necks. Anything can happen. You can even get a full glass of beer at a cocktail lounge."—Raymond Chandler, Red Wind (opening paragraph)